Regular Expressions 101

Pro

^start of line

Group 1([a-z]+)

Character Class[a-z]+

+matches at least one character from the set below:

a-zone character from a (97₁₀) to z (122₁₀) (case insensitive)

Non-Capturing Group(?:(-?\d*.?\d+)[^\d\n\r.-]*(-?\d*.?\d+)?)?

?repeats the group contents below at most once:

Group 2(-?\d*.?\d+)

-?optionally matches the literal - (45₁₀ / 55₈ / 2D₁₆)

\d*a digit, repeated any number of times

.?optionally matches any character (except for line terminators)

\d+a digit, repeated at least once

Negated Character Class[^\d\n\r.-]*

*matches any number of characters outside the set below:

\da digit

\na line-feed (newline) character (ASCII 10)

\ra carriage return (ASCII 13)

.the literal . (46₁₀ / 56₈ / 2E₁₆)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Group 3(-?\d*.?\d+)?

?repeats the group contents below at most once:

-?optionally matches the literal - (45₁₀ / 55₈ / 2D₁₆)

\d*a digit, repeated any number of times

.?optionally matches any character (except for line terminators)

\d+a digit, repeated at least once

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

i modifier: insensitive. Matches without distinguishing uppercase and lowercase letters

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Detailed match information will be displayed here automatically.

26 tokens

^([a-z]+)(?:(-?\d*.?\d+)[^\d\n\r.-]*(-?\d*.?\d+)?)?

New

M-11.11,-22
L.33-44  
ac55         66 
h77  
M88 .99  
Z

M-11.11,-22
L.33-44  
ac55         66 
h77  
M88 .99  
Z